1
0
Fork 0
mirror of https://github.com/rails/rails.git synced 2022-11-09 12:12:34 -05:00
rails--rails/actionpack/lib/action_dispatch/middleware/params_parser.rb
wycats 39d6f9e112 Make many parts of Rails lazy. In order to facilitate this,
add lazy_load_hooks.rb, which allows us to declare code that
should be run at some later time. For instance, this allows
us to defer requiring ActiveRecord::Base at boot time purely
to apply configuration. Instead, we register a hook that should
apply configuration once ActiveRecord::Base is loaded.

With these changes, brings down total boot time of a
new app to 300ms in production and 400ms in dev.

TODO: rename base_hook
2010-03-07 06:24:30 -08:00

77 lines
No EOL
2.2 KiB
Ruby

require 'action_dispatch/http/request'
module ActionDispatch
class ParamsParser
DEFAULT_PARSERS = {
Mime::XML => :xml_simple,
Mime::JSON => :json
}
def initialize(app, parsers = {})
@app, @parsers = app, DEFAULT_PARSERS.merge(parsers)
end
def call(env)
if params = parse_formatted_parameters(env)
env["action_dispatch.request.request_parameters"] = params
end
@app.call(env)
end
private
def parse_formatted_parameters(env)
request = Request.new(env)
return false if request.content_length.zero?
mime_type = content_type_from_legacy_post_data_format_header(env) || request.content_type
strategy = @parsers[mime_type]
return false unless strategy
case strategy
when Proc
strategy.call(request.raw_post)
when :xml_simple, :xml_node
request.body.size == 0 ? {} : Hash.from_xml(request.raw_post).with_indifferent_access
when :yaml
YAML.load(request.raw_post)
when :json
if request.body.size == 0
{}
else
data = ActiveSupport::JSON.decode(request.raw_post)
data = {:_json => data} unless data.is_a?(Hash)
data.with_indifferent_access
end
else
false
end
rescue Exception => e # YAML, XML or Ruby code block errors
logger.debug "Error occurred while parsing request parameters.\nContents:\n\n#{request.raw_post}"
raise
{ "body" => request.raw_post,
"content_type" => request.content_type,
"content_length" => request.content_length,
"exception" => "#{e.message} (#{e.class})",
"backtrace" => e.backtrace }
end
def content_type_from_legacy_post_data_format_header(env)
if x_post_format = env['HTTP_X_POST_DATA_FORMAT']
case x_post_format.to_s.downcase
when 'yaml' then return Mime::YAML
when 'xml' then return Mime::XML
end
end
nil
end
def logger
defined?(Rails.logger) ? Rails.logger : Logger.new($stderr)
end
end
end